Recent changes in migration patterns in the Mexico City metropolitan zone

"This study analyzes the magnitude, evolution over time, and place of origin of migrants to the ZMCM [Mexico City metropolitan zone] during the 1970s and 80s. More specifically, the study attempts to test the following hypothesis: attraction of migrants to the ZMCM has diminished over time;...thus the ZMCM is emerging as an important origin of migrants toward other cities. The article also provides an analysis of the changes in the characteristics of the migrants...." (SUMMARY IN ENG)